Ant McPartlin breaks down in tears on tonight's Britain's Got Talent series opener after watching an emotional audition.

The fragile presenter can bee seen wiping away tears just weeks before his catastrophic drink-drive arrest.

Despite taking a break from all TV commitments while in rehab, Ant does feature in the pre-recorded first episode of the series, which was filmed back in January.

His heartstrings are tugged when magician Marc Spelmann opens up about his wife's struggle with IVF and battle with cancer while pregnant in the middle of his performance.

"Oh god it's emotional," wails Ant as tears stream down his face as he watches from the sidelines with buddy Dec Donnelly, who is also crying.

Ant is reduced to tears as he watches the magician's incredible performance (Image: Lia Toby/WENN.com)

After getting a standing ovation from the audience, Marc also receives a hug from teary Ant, who says: "You had me in tears man."

The moving magical act also had all the judges in tears as the 46-year-old magician, from North London, suddenly stops his performance.

The upbeat atmosphere suddenly changes as a message appears on the screen explaining that Mark's wife had struggled through five years of IVF before finding out she had cancer three months into their much-wanted pregnancy.

After Marc explains that what he is about to show is "real magic", video footage of two-year-old Isabella - who survived her mum's chemotherapy while still in the womb - appears.

The message reads: "On the 23rd December 2015 I discovered real magic. Despite over 5 years of IVF & my wife being diagnosed with cancer whilst pregnant our daughter Isabella made it through the chemotherapy to make our dreams come true."

Each clip features heartwarming moments of Isabella, up to two years ago, that predict choices the judges had made on that day.

The judges are left in awe as Marc defies belief (Image: REX/Shutterstock)

She is seen colouring with a red crayon, the colour that David Walliams chooses, and hugging a cuddly penguin toy, which amazingly resembles the same card Alesha Dixon selects from a deck.

Amanda Holden messes up a Rubik's cube to create a random pattern, but Mark's daughter had made the same one in one of the pre-recorded tapes.

If that isn't remarkable enough, Simon Cowell circles the word 'hat' on a random page of a 600 page book, which is then said by Isabella in a video recorded when she was just months old.

Ant has to wipe away his tears (Image: ITV)

Simon looks gobsmacked as he rises to his feet to applaud the incredible magician.

While Ant and Dec leave their spot on the side of the stage to congratulate Marc for his amazing performance.

Has Marc impressed the judges enough to get through to the next round?